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https://gitlab.freedesktop.org/emersion/libdisplay-info.git
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Add edid-decode testing infrastructure
Add two small shell utilities to generate and compare diffs between edid-decode and di-edid-decode. Store the diffs in-tree and add tests to ensure they don't regress. Run the tests in CI with a pinned installation of edid-decode. One EDID blob is added to the test collection: dell-2408wfp-dp. It's extracted [1] from the edid-decode repository. [1]: https://git.linuxtv.org/edid-decode.git/tree/data/dell-2408wfp-dp Signed-off-by: Simon Ser <contact@emersion.fr> Closes: https://gitlab.freedesktop.org/emersion/libdisplay-info/-/issues/5
This commit is contained in:
Simon Ser
parent
1c0f7497f5
commit
a8e78208a5
8 changed files with 131 additions and 5 deletions
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@ -1,4 +1,4 @@
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.templates_sha: &templates_sha 3e66ea37e5672bb8f48e3056ba92915b5fc5b888
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.templates_sha: &templates_sha 3f37cc0e461f5b0c815409bf6f55759f26a74e9c
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include:
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- project: 'freedesktop/ci-templates'
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@ -8,9 +8,13 @@ include:
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ref: *templates_sha
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file: '/templates/alpine.yml'
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# When updating the prepare-container step, make sure to bump
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# FDO_DISTRIBUTION_TAG, otherwise the container won't get rebuilt.
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# FDO_FORCE_REBUILD can be used when testing container changes.
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variables:
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FDO_UPSTREAM_REPO: 'emersion/libdisplay-info'
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FDO_DISTRIBUTION_TAG: '2022-03-24.2'
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FDO_DISTRIBUTION_TAG: '2022-03-28.0'
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#FDO_FORCE_REBUILD: 1
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stages:
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- "Contribution checks"
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@ -32,7 +36,15 @@ prepare-container:
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extends: .fdo.container-build@alpine@x86_64
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stage: "Prepare container"
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variables:
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FDO_DISTRIBUTION_PACKAGES: 'build-base meson'
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FDO_DISTRIBUTION_PACKAGES: 'build-base meson make git'
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FDO_DISTRIBUTION_EXEC: |
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git clone git://linuxtv.org/edid-decode.git
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cd edid-decode
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git checkout 8a8d673d738ce010ca32a179032e8f6c0bb5dfb4
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make
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make install
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cd ..
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rm -rf edid-decode
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rules:
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- when: on_success
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@ -18,7 +18,16 @@ particular, each commit must carry a Signed-off-by tag to denote that the
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submitter adheres to the [Developer Certificate of Origin 1.1]. This project
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follows the [freedesktop.org Contributor Covenant].
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## Testing
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The low-level EDID library is tested against [edid-decode]. `test/data/`
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contains a small collection of EDID blobs and diffs between upstream
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`edid-decode` and our `di-edid-decode` clone. Our CI ensures the diffs are
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up-to-date. A patch should never make the diffs grow larger. To add a new EDID
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blob or update a diff, use `test/edid-decode-diff.sh test/data/<edid>`.
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[GitLab project]: https://gitlab.freedesktop.org/emersion/libdisplay-info
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[Wayland contribution guidelines]: https://gitlab.freedesktop.org/wayland/wayland/-/blob/main/CONTRIBUTING.md
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[Developer Certificate of Origin 1.1]: https://developercertificate.org/
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[freedesktop.org Contributor Covenant]: https://www.freedesktop.org/wiki/CodeOfConduct/
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[edid-decode]: https://git.linuxtv.org/edid-decode.git/
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@ -3,7 +3,7 @@ project(
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'c',
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version: '0.0.0',
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license: 'MIT',
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meson_version: '>= 0.52.1',
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meson_version: '>= 0.55.0',
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default_options: [
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'c_std=c11',
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'warning_level=3',
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@ -51,9 +51,11 @@ di_dep = declare_dependency(
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include_directories: include_directories('include'),
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)
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executable(
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di_edid_decode = executable(
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'di-edid-decode',
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'di-edid-decode.c',
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dependencies: di_dep,
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install: true,
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)
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subdir('test')
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BIN
test/data/dell-2408wfp-dp
Normal file
BIN
test/data/dell-2408wfp-dp
Normal file
Binary file not shown.
42
test/data/dell-2408wfp-dp.diff
Normal file
42
test/data/dell-2408wfp-dp.diff
Normal file
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@ -0,0 +1,42 @@
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--- ref
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+++ di
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@@ -5,39 +5,3 @@
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Model: 41003
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Serial Number: 842091859
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Made in: week 47 of 2008
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- Basic Display Parameters & Features:
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- Digital display
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- Bits per primary color channel: 8
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- DisplayPort interface
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- Maximum image size: 52 cm x 32 cm
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- Gamma: 2.20
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- DPMS levels: Off
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- Supported color formats: RGB 4:4:4
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- First detailed timing includes the native pixel format and preferred refresh rate
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- Color Characteristics:
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- Red : 0.6738, 0.3193
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- Green: 0.1875, 0.7060
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- Blue : 0.1484, 0.0644
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- White: 0.3134, 0.3291
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- Established Timings I & II:
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- IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
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- DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
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- DMT 0x06: 640x480 75.000000 Hz 4:3 37.500 kHz 31.500000 MHz
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- DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
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- DMT 0x0b: 800x600 75.000000 Hz 4:3 46.875 kHz 49.500000 MHz
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- DMT 0x10: 1024x768 60.003840 Hz 4:3 48.363 kHz 65.000000 MHz
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- DMT 0x12: 1024x768 75.028582 Hz 4:3 60.023 kHz 78.750000 MHz
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- DMT 0x24: 1280x1024 75.024675 Hz 5:4 79.976 kHz 135.000000 MHz
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- Standard Timings:
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- DMT 0x23: 1280x1024 60.019740 Hz 5:4 63.981 kHz 108.000000 MHz
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- DMT 0x33: 1600x1200 60.000000 Hz 4:3 75.000 kHz 162.000000 MHz
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- DMT 0x15: 1152x864 75.000000 Hz 4:3 67.500 kHz 108.000000 MHz
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- Detailed Timing Descriptors:
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- DTD 1: 1920x1200 59.950171 Hz 8:5 74.038 kHz 154.000000 MHz (519 mm x 320 mm)
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- Hfront 48 Hsync 32 Hback 80 Hpol P
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- Vfront 3 Vsync 6 Vback 26 Vpol N
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- Display Product Serial Number: 'G283H8BI21MS'
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- Display Product Name: 'DELL 2408WFP'
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- Display Range Limits:
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- Monitor ranges (Bare Limits): 56-76 Hz V, 30-83 kHz H, max dotclock 170 MHz
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-Checksum: 0x92
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17
test/edid-decode-check.sh
Executable file
17
test/edid-decode-check.sh
Executable file
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@ -0,0 +1,17 @@
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#!/bin/sh -eu
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workdir="$(mktemp -d)"
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cleanup() {
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rm -rf "$workdir"
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}
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trap cleanup EXIT
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edid="$1"
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"$REF_EDID_DECODE" -s <"$edid" >"$workdir/ref"
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"$DI_EDID_DECODE" <"$edid" >"$workdir/di"
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if [ -f "$edid.diff" ]; then
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patch "$workdir/ref" "$edid.diff"
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fi
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diff -u "$workdir/ref" "$workdir/di"
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20
test/edid-decode-diff.sh
Executable file
20
test/edid-decode-diff.sh
Executable file
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@ -0,0 +1,20 @@
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#!/bin/sh -eu
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REF_EDID_DECODE="${REF_EDID_DECODE:-edid-decode}"
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DI_EDID_DECODE="${DI_EDID_DECODE:-di-edid-decode}"
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workdir="$(mktemp -d)"
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cleanup() {
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rm -rf "$workdir"
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}
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trap cleanup EXIT
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for edid in "$@"; do
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"$REF_EDID_DECODE" -s <"$edid" >"$workdir/ref"
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"$DI_EDID_DECODE" <"$edid" >"$workdir/di"
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if ! diff -u --label ref "$workdir/ref" --label di "$workdir/di" >"$workdir/diff"; then
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cp "$workdir/diff" "$edid.diff"
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else
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rm "$edid.diff"
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fi
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done
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24
test/meson.build
Normal file
24
test/meson.build
Normal file
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ref_edid_decode = find_program('edid-decode', native: true, required: false)
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if not ref_edid_decode.found()
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test('edid-decode-not-found', find_program('false'))
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subdir_done()
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endif
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test_harness = find_program('./edid-decode-check.sh', native: true)
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test_cases = [
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'dell-2408wfp-dp',
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]
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foreach tc : test_cases
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test(
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tc,
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test_harness,
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args: [files('data/' + tc)],
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env: [
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'REF_EDID_DECODE=' + ref_edid_decode.full_path(),
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'DI_EDID_DECODE=' + di_edid_decode.full_path(),
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],
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depends: [di_edid_decode],
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)
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endforeach
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